Apparatus and method for molding material

Abstract

Proposed are an apparatus for molding a material, and a method for molding a material by using the apparatus. The apparatus includes first and second fixed platens (110 and 120) provided as a pair and spaced a predetermined distance from each other by tie bars (150), a movable platen (140) movable along the tie bars (150) between the first and second fixed platens (110 and 120), a mold (200) which is provided with a movable mold (220) and a fixed mold (240) and which forms a molding space (260) that is capable of being open or closed as the movable mold (220) moves in a direction toward or away from the fixed mold (240), and a pressing block (300) selectively positioned between the first fixed platen (110) and the movable mold (220) such that the pressing block is capable of applying a pressure to the movable mold (220).

What is claimed is: 
     
       1. An apparatus for molding a material, the apparatus comprising:
 first and second fixed platens ( 110  and  120 ) which are provided as a pair and spaced a predetermined distance from each other by a tie bar ( 150 ); 
 a movable platen ( 140 ) formed such that the movable platen ( 140 ) is capable of moving along the tie bar ( 150 ) between the first and second fixed platens ( 110  and  120 ); 
 a mold ( 200 ) which is provided with a movable mold ( 220 ) formed on the movable platen ( 140 ) and with a fixed mold ( 240 ) formed on the second fixed platen ( 120 ) and which forms a molding space ( 260 ) in a point where the movable mold ( 220 ) and the fixed mold ( 240 ) are in contact with each other, wherein the molding space ( 260 ) is formed such that the molding space ( 260 ) is capable of being open or closed as the movable mold ( 220 ) moves in a direction toward or away from the fixed mold ( 240 ); 
 a pressing block ( 300 ) formed such that the pressing block ( 300 ) is capable of being moved at a position deviated from between the first fixed platen ( 110 ) and the movable platen ( 140 ) by an actuator ( 500 ), the pressing block ( 300 ) being capable of applying a pressure to the movable mold ( 220 ) when the pressing block ( 300 ) is moved between the first fixed platen ( 110 ) and the movable platen ( 140 ) by the actuator ( 500 ); and 
 a punch ( 230 ) which penetrates the movable platen ( 140 ) and the movable mold ( 220 ) and reaches the molding space ( 260 ) and which has a rear end provided with a punch support ( 232 ), the punch ( 230 ) being configured to move forward or backward by a punch cylinder ( 234 ) that is formed between the movable platen ( 140 ) and the punch support ( 232 ), thereby being used as a forging mold. 
 
     
     
       2. The apparatus of  claim 1 , further comprising a wedge ( 450 ) which is mounted on an upper surface of the movable platen ( 140 ) and which enters between the punch support ( 232 ) and the movable platen ( 140 ) when the punch ( 230 ) moves backward, the wedge ( 450 ) being configured to enter between the punch support ( 232 ) and the movable platen ( 140 ) when the punch ( 230 ) moves backward while the pressing block ( 300 ) is in a state of being positioned between the first fixed platen ( 110 ) and the movable platen ( 140 ), thereby restricting the movable platen ( 140 ) from moving backward. 
     
     
       3. The apparatus of  claim 2 , wherein the wedge ( 450 ) comprises a plurality of wedges ( 450 ), and the plurality of wedges ( 450 ) is formed such that the plurality of wedges ( 450 ) is facing each other while the punch support ( 232 ) is placed therebetween. 
     
     
       4. The apparatus of  claim 1 , wherein the molding space ( 260 ) and an entrance of a through hole ( 142 ) through which the punch ( 230 ) passes are sealed by a packing, a rear space ( 144 ) is formed inside the through hole ( 142 ), and exhaust pipes ( 620 ) are respectively connected to the rear space ( 144 ) and the molding space ( 260 ), so that air is capable of being simultaneously suctioned from two points to which the exhaust pipes ( 620 ) are connected. 
     
     
       5. The apparatus of  claim 1 , wherein the pressing block ( 300 ) comprises a plurality of pressing blocks ( 300 ).